In recent years, multiple-input-multiple-output (MIMO) antennas with the ability to radiate
waves in more than one pattern and polarization play a great role in modern …

In this article, we reconsider the subject of spatiotemporal electromagnetic (EM) energy
around the antenna near field from a fundamental perspective and discuss the use of …

Millimeter-wave (mmWave), massive multiple-input multiple-output (MIMO), are expected to
play a crucial role for 5G and beyond cellular and next-generation wireless local area …

A general computational paradigm, the time-domain infinitesimal dipole model (IDM)
method, is developed and applied to compute reactive energy and radiated power for …

We present a general and comprehensive approach to evaluate spatio-temporal localized
energy around radiating structures of arbitrary shapes and excitation signals. The method …

In this paper, a four element MIMO configuration is proposed for possible application in sub-
6 GHz 5G wireless access points working in 3-4 GHz frequency bands. The proposed …

We propose an efficient finite-difference time-domain (FDTD) computational paradigm to
estimate the channel matrix of generic massive multiple-input-multiple-output (MIMO) …

We propose a source-based approach to the analysis and evaluation of cross correlation in
generic near-field (NF) interaction scenarios. The proposed theory integrates …

In this paper, we deploy a full-wave FDTD paradigm to investigate the effect of
reconfigurable intelligent surface (RIS)–switchable frequency-selective surfaces (FSS)–on …

We develop a general approach to antenna directivity by combining the infinitesimal dipole
model (IDM) and the cross-correlation Green's function (CGF) in a new formulation. The …